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ADCP-50-304 • Issue 19 • June 1999 • Section 2: Functional Description
Page 2-10
© 1999, ADC Telecommunications, Inc.
Table 2-3. RS-232 Modem Terminal Interface
PIN NAME SOURCE FUNCTION CIRCUIT CCITT/EIA
1* FG — Frame Ground 101 (AA)
2* TD DTE Transmitted Data 103 (BA)
3* RD DCE Received Data 104 (BB)
4* RTS DTE Request To Send 105 (CA)
5* CTS DCE Clear To Send 106 (CB)
6* DSR DCE Data Set Ready 107 (CC)
7* SG — Signal Ground 102 (AB)
8* DCD DCE Data Carrier Detect 109 (BA)
9* DCE Positive DC Test Voltage
10* DCE Negative DC Test Voltage
11*
12* SRLSD DCE Sec Data Carrier Detect 122 (SCF)
13* (S)CTS DCE Sec Clear To Send 121 (SCB)
14* STD DTE Sec Transmittal Data 128 (SBA)
15* TC DCE Transmitter Clock 114 (DB)
16* SRD DCE Sec Received Data 119 (SBB)
17* RC DCE Receiver Clock 115 (DD)
18*
LL DTE Local Loopback 141 (LL)
19* SRTS DTE See Request To Send 120 (SCA)
20* DTR DTE Data Terminal Ready 108/2 (CD)
21* SQ DCE Signal Quality Detect 110 (CG)
22* RI DCE Ring Indicator 125 (CE)
23* DTE Data Rate Selector 111 (CH)
Data Rate Selector 112 (CI)
24* ETC DTE Ext Transmitter Clock 113 (DA)
25* TM DCE Test Mode 142 (TM)